Numbering machine



Amig 9 929- A. c. RoTHoFF l,?08,l54

NUMBERING MACHI NE Filed March 2, 1928 niv l /NVENTo/e Mw A .Patentedpr. 9, 1929.

ALBIN C. ROTHOFF, OF BROOKLYN, NEW YORK, ASSIGNOR TO WETTER NUMBERINGMACHINE COMPANY, F BROOKLYN, NEW YORK, .A CORPORATION OF NEW YORK.

NUMBERING MACHINE.

Application led March 2, 1928. Serial No. 258,497.

` This invention relates to type-high numbermg machines, such as arecommonly locked 1n the form with type andcomprlse a series of numberwheels which are actu-v means whereby this tendency shall be over comeand the number wheels shall be stopped in printing position. l

The invention will be more fully explained hereinafter with reference tothe accompanying drawing in which it is illustrated and in which:

Figure 1 is a top view of a numbering machine which embodies theinvention, with the number wheels in'intermediate positions.

Figure 2 is a view of the same in elevation as seen from the right handin Figure l, with the end plate broken away to showI parts behind it. l,Figure 3 is a view of the same in side elcvation, with the side platebroken away, some parts in section and the number wheels in intermediatepositions.

Figure et is a view 1n section on the plane indicated by the broken line4-4 of Figure 3, but with the parts in printing position.

Figure 5-is a View in elevation as seen from the opposite side from thatrepresented in Figure 3, the spring plate which coacts with the detentpawls being broken away and the number wheels being shown inintermediate positions.

' Figure 6 is a view in section on the plane indicated by the` brokenline 6--6 of Figure 3, but with the parts in printing position.

. Figure 7 is a view in section on the plane indicated by the brokenline 7-7`- of Figure'8.

Figure 8 is a view in section on the horizontal plane indicated by thebroken line 8 8 ot Figure 3, the number. wheels being omitted and someparts broken away.

Except as to the means for checking lthe movement ofthe number wheels,the yconstruction of the numbering machine may be of any usual orpreferred form. In order" that the application of the invention may beunderstood that form of construction of the vnumbering machine which hasbeen chosen for illustration of an embodiment of the invention, will bedescribed briefly. This form of the machine comprises a suitable casing(L in which is ixed a shaft I). Typographic number wheels ci are mountedto rotate on the shaft b and are actuated in the usual manner by theswingingr pawl frame cl which carries a series of springpressed pawls dladapted for engagement with suitable ratchet wheels c1 formed with` orsecured to the number Wheels c respectively. One of the cheek pieces l2of the swinging pawl frame is engaged by a pin e which projects througha slot in the partition plate al of the casing from a plate lever elpivoted at e2 on the vertically movable spring-pressed plunger f andengaging a pin e on the casing a. The plunger f, bearing on its upperend a type character or other device f1 adapted for contact with theroller or platen of the printing press, is held normally in its elevatedposition, with its upper end above the plane of print, by tlie springsf2 on which it is seated. It will be understood that through' thedepression ofthe plunger by the action of the press and its raising bythe springs f2 the pawl frame (I2 receives an oscillatory movement bywhich the desired forward movement of the number wheels is effected andthe pawl frame is placed in position for another operation. Arranged forcoaction with each" 90 ratchet wheel c1 is a hold-back pawl o r detent gwhich is normally held yieldingly in engagement with the ratchet wheelby a spring It, serving normally to prevent backward Yrotation of theratchet wheel and corresponding number wheel.

In accordance with the present invention a means is provided whereby allof the detents o r hold-back pawls g are pressed ositively against therespective ratchet w eels 100 c1 as the swinging pawl frame d completesits effective movement, whereby the continued forward movement of thenumber wheels, under the influence of their own momentum, is preventedand the number wheels 105 are stopped in the correct printing posi-vtion. Pivotally mounted in proximity `to the detents g and, it may be,on the rod g1 on which the detents are pivotally supported,- is a framecomposed of two plates or cheek 110 pieces i and a rod 1, the rod 1being positioned back of the upper'ends of the detents g, withsufficient clearance `normally to permity the free action of the detenteas the ratchet wheels are actuated. 'One of the plates or cheek pieces zis formed with a tooth i2 for engagement with the corresponding tooth d3of the corresponding cheek piece d2 of the swinging pawl frame. Thecoacting teeth 'z'z and d3 vare so lformed and related that as theswinging pawl frame nearly approaches the limit 'of its effectivemovements, the frame e', il is swung upon its pivot to move the rodllagainst the detents g and force them against the respective ratchetwheels thereby lockingl the .ratchet wheels and the several. numberwheels ragainst further movement. This action takes place as will beunderstood, ljust as the number wheels have reached the printingposition. As' the pawl frame swings back to its initial position theframe z', i1 swings back away from the detents g which are thenV heldyieldinglybythe springs k.

Itr will be observed that each detent g is formed with the heel h2 tolimit its rearward movement.

It will be understood that various 'changes in details of constructionand arrangement can be made to suitdierent forms of numbering machinesand that, except as pointed out in the claims, the invention is notrestricted tothe particular construction shown and described herein. l

I claim as myinvention: f

1.` In a numbering machine which .has a number lwheel a ratchet wheelassociated with thel number wheel, a Swingin pawl drame and adetent forcoaction lwith the ratchet wheel, means actuated by the swinging pawlframe to press the datent positively a 'ainst the ratchet wheel in thelast .of the e ective movement of thepawl frame operathrely engaged toeect movement of rod against the detents in the last of the effectivemovement of the vpawl frame.

This specification signed this 29th day of February A. D., 1928.

.ALBIN C. LROTHOFF.

